Bound by shared hostility toward Russia’s imperial ambitions and determination to resist the military onslaught ordered by President Vladimir V. Putin, Poland and Ukraine also share painfully entangled pasts. The carnage of 1943 has been a source of tension for decades, but it is now an episode of pressing import as Poland prepares to commemorate its 80th anniversary on July 11. On Sunday, President Andrzej Duda of Poland and President Volodymyr Zelensky of Ukraine visited a church in Lutsk, in western Ukraine, to remember the massacre. Mr. Duda’s office and Mr. Zelensky posted photographs on Twitter from the ceremony, using the same language to pay tribute to the victims. She still resents “that they show no remorse” and has not forgotten the frenzied cries of “kill the Polacks, kill the Polacks” that echoed around her home village when she was 13.

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Persons: Vladimir V, Putin, Andrzej Duda of Poland, Volodymyr Zelensky, Zelensky, Osinska, “ Locations: Poland, Ukraine, Warsaw, Lutsk